Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 189

No./symbol/ Setting Function
name digit

PA14 Select a rotation direction or travel direction.
*POL The torque polarity can be changed with the combination of this parameter and [Pr. PC29 Torque POL
Rotation direction reflection selection].
selection/travel • At position mode/velocity mode
direction selection
Setting value
0
1
• At torque mode
Setting value
[Pr. PA14]
0
1
The following shows the servo motor rotation directions.
Forward rotation (CCW)
The positive/negative directions of the linear servo motor are as follows.
Positive direction
LM-H3/LM-F series
Setting range: 0, 1

PA15 Set the encoder output pulses from the servo amplifier by using the number of output pulses per revolution,
*ENR dividing ratio, or electronic gear ratio. (after multiplication by 4)
Encoder output Selecting "Dividing ratio setting (_ _ 1 _)" of "Encoder output pulse setting selection" in [Pr. PC03] will divide
pulses the travel distance [pulse] of the linear encoder by the setting value.
Set a numerator of the electronic gear for the A/B-phase pulse output when selecting "A-phase/B-phase
pulse electronic gear setting (_ _ 3 _)" of "Encoder output pulse setting selection" in [Pr. PC03].
Refer to the following for details.
Page 635 Encoder output pulse setting method
The maximum output frequency is 4.6 Mpulses/s. Set the parameter within this range.
Setting range: 1 to 4194304
Servo motor rotation direction/linear servo motor travel direction
Position mode
Positioning address increase/
Velocity mode
Speed command: Positive
CCW or positive direction
CW or negative direction
Servo motor rotation direction/travel direction
[Pr. PC29]
Torque mode
Torque command: Positive
0 _ _ _ : Enabled CCW or positive direction
1 _ _ _ : Disabled CCW or positive direction
0 _ _ _ : Enabled CW or negative direction
1 _ _ _ : Disabled CCW or positive direction
Reverse rotation (CW)
Secondary side
Negative direction
Secondary side
Primary side
LM-U2 series
Position mode
Positioning address decrease/
Velocity mode
Speed command: Negative
CW or negative direction
CCW or positive direction
Torque mode
Torque command: Negative
CW or negative direction
CW or negative direction
CCW or positive direction
CW or negative direction
Negative direction
Positive direction
Table Table
Primary side
Positive
direction
Negative direction
LM-K2 series
5.2 Detailed list of parameters
Initial
value
[unit]
0
Secondary
side
Primary side
4000
[pulse/rev]
5 PARAMETERS
187
5